Incident ID |
NH00297-3442 |
Dam Name |
FOREST LAKE DAM |
Downstream Hazard Potential |
L |
State |
NH |
Incident Date |
07/18/2021 |
Incident Type |
Non-failure |
Incident Driver |
Hydrologic/flooding |
Incident Mechanism 1 |
High Reservoir Level |
Incident Mechanism 2 |
Overtopping |
Incident Mechanism 3 |
Erosion |
Incident Description |
Heavy rainfall resulted in overtopping of the dam causing erosion adjacent to the concrete spillway |
Named Hydrologic Event |
|
EAP Enacted (Y/N) due to Incident |
|
Fatalities (Number) |
0 |
Number of People Evacuated |
0 |
Number of Habitable Structures Evacuated |
0 |
Number of Habitable Structures Flooded |
0 |
Other Infrastructure Impacts |
None |
Economic Damages (in $) |
Unknown |
Volume released at failure (ac-ft) |
|
Response |
Dam was sandbagged until waters receeded |
Additional Remarks or Updates |
|
Incident Time |
|
Incident Duration |
2 days |
Incident Report Produced |
Yes |
Information Sources |
NHDES DAM BUREAU |
Owner Type |
P |
Dam Type |
REST |
Primary Purpose(s) |
R |
EAP |
NR |
Year Completed |
1925 |
Year Modified |
0 |
Dam Height |
8 ft |
Max Storage (ac-ft) |
378 ac-ft |
Surface Area (acres) |
93 acres |
River Name |
TR ASHUELOT RIVER |
Latitude |
42.7988 |
Longitude |
-72.3697 |
Regulatory Agency(ies) |
NHDES DAM BUREAU |
NID Number |
NH00297 |
Attachments |
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